…near-field and potential infrastructure-led exploration opportunities have been identified
Tullow Oil has signed a rig contract for up to 10 wells in the 2027-28 Ghana drilling programme.
The rig expected to arrive around the middle of 2027 and target identification being supported by the high-quality four dimensional (4D) seismic data and incremental support from the incorporation of the Ocean Bottom Node (OBN) survey data.
The 2025-26 drilling campaign is now complete with six Jubilee producers onstream and the final well, a water injector, onstream in September 2026.
Gross oil production from the Jubilee field averaged 70,800Barrels of Oil Per Day (BOPD (net: 27,600BOPD) in the first half of the year, outperforming expectations. “The 4D seismic data interpretation has been shown in this drilling campaign to deliver key reservoir insights that have enabled successful target selection and high production performance”, Tullow highlights in the first half 2026 report. “A number of existing wells drilled in the previous campaign have seen the benefit of production optimisation activities in the first half of 2026 and a number of key wells have outperformed decline expectations whilst being supported by dual riser operations.”
Full year water injection performance remains in line with expectations, despite unexpected downtime in the second quarter. Voidage replacement remains above 100% in the first six months and showing an increasing trend on an annual basis. Gross oil production from the TEN fields averaged 14,800BOPD (net: 8,100BOPD) in the first half of the year, above expectations.
Tangible near-term projects such as subsea pumps, further development drilling, monetisation of gas resources and an intervention campaign are being progressed to mature material Jubilee and TEN resources into reserves. Furthermore, tangible longer-term near-field and potential infrastructure-led exploration opportunities have been identified and are being matured in deeper horizons beneath Jubilee and TEN, supported by the high-quality 4D seismic and in due course by the OBN survey data.
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